CN118670144A - Multi-outlet real-time switchable heating system and method - Google Patents
Multi-outlet real-time switchable heating system and method Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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Abstract
本发明公开了一种多出口可实时切换加热系统及方法。其中,在该系统中,多个换热炉均包括烟气入口、烟气出口、换热气体入口和换热气体出口,多个换热炉的烟气入口通过第一管道以并联方式与燃烧装置相连,多个换热炉的烟气出口分别与第二管道相连,多个换热炉的换热气体入口分别与第三管道相连,多个换热炉的换热气体出口通过第四管道以并联方式与焦炉相连;控制装置根据多个换热炉的实际温度和设定温度、焦炉的实际温度和设定温度来控制多个换热炉的烟气入口、烟气出口、换热气体入口和换热气体出口的开闭,以使进入焦炉的换热气体温度稳定。本发明能保证焦炉内工艺温度的稳定。
The present invention discloses a multi-outlet real-time switchable heating system and method. In the system, multiple heat exchange furnaces each include a smoke inlet, a smoke outlet, a heat exchange gas inlet and a heat exchange gas outlet. The smoke inlets of the multiple heat exchange furnaces are connected to the combustion device in parallel through a first pipeline, the smoke outlets of the multiple heat exchange furnaces are respectively connected to the second pipeline, the heat exchange gas inlets of the multiple heat exchange furnaces are respectively connected to the third pipeline, and the heat exchange gas outlets of the multiple heat exchange furnaces are connected to the coke oven in parallel through a fourth pipeline; the control device controls the opening and closing of the smoke inlets, smoke outlets, heat exchange gas inlets and heat exchange gas outlets of the multiple heat exchange furnaces according to the actual temperature and set temperature of the multiple heat exchange furnaces and the actual temperature and set temperature of the coke oven, so as to stabilize the temperature of the heat exchange gas entering the coke oven. The present invention can ensure the stability of the process temperature in the coke oven.
Description
技术领域Technical Field
本发明涉及燃料燃烧加热技术领域,尤其涉及一种多出口可实时切换加热系统及方法。The present invention relates to the technical field of fuel combustion heating, and in particular to a multi-outlet real-time switchable heating system and method.
背景技术Background Art
在焦化、石油、化工等领域,燃烧及其换热是热能装置的核心设备,近年来,我国一直大力推进节能减排,强化安全、节能和环保。尤其是在焦化行业,高温干馏是一道重要工艺,离不开加热换热;煤干馏产物的产率和组成不仅取决于原料煤质、炉结构,更重要的是加工条件,该加工条件主要是温度和时间,随着煤干馏工艺温度的不同,煤干馏产品也不同。因此,稳定的煤干馏工艺温度控制对煤干馏产品起决定作用。In the fields of coking, petroleum, chemical industry, etc., combustion and heat exchange are the core equipment of thermal energy devices. In recent years, my country has been vigorously promoting energy conservation and emission reduction, strengthening safety, energy conservation and environmental protection. Especially in the coking industry, high-temperature distillation is an important process that cannot be separated from heating and heat exchange; the yield and composition of coal distillation products depend not only on the quality of raw coal and furnace structure, but more importantly on processing conditions, which are mainly temperature and time. With the different temperatures of coal distillation process, coal distillation products are also different. Therefore, stable temperature control of coal distillation process plays a decisive role in coal distillation products.
发明内容Summary of the invention
鉴于背景技术中存在的问题,本发明的目的在于提供一种多出口可实时切换加热系统及方法,能保证焦炉内工艺温度的稳定。In view of the problems existing in the background technology, the purpose of the present invention is to provide a multi-outlet real-time switchable heating system and method, which can ensure the stability of the process temperature in the coke oven.
本发明第一方面提出了一种多出口可实时切换加热系统。The first aspect of the present invention provides a multi-outlet real-time switchable heating system.
根据本发明第一方面实施例的多出口可实时切换加热系统,包括燃烧装置、焦炉、换热炉和控制装置;A multi-outlet real-time switchable heating system according to an embodiment of the first aspect of the present invention comprises a combustion device, a coke oven, a heat exchange furnace and a control device;
其中,所述燃烧装置用于产生高温烟气;Wherein, the combustion device is used to generate high-temperature flue gas;
所述换热炉有多个,多个所述换热炉均包括烟气入口、烟气出口、换热气体入口和换热气体出口,多个所述换热炉的所述烟气入口通过第一管道以并联方式与所述燃烧装置相连,多个所述换热炉的所述烟气出口分别与第二管道相连,多个所述换热炉的所述换热气体入口分别与第三管道相连,多个所述换热炉的所述换热气体出口通过第四管道以并联方式与所述焦炉相连;There are multiple heat exchange furnaces, each of which comprises a flue gas inlet, a flue gas outlet, a heat exchange gas inlet and a heat exchange gas outlet. The flue gas inlets of the multiple heat exchange furnaces are connected to the combustion device in parallel through a first pipeline, the flue gas outlets of the multiple heat exchange furnaces are respectively connected to a second pipeline, the heat exchange gas inlets of the multiple heat exchange furnaces are respectively connected to a third pipeline, and the heat exchange gas outlets of the multiple heat exchange furnaces are connected to the coke oven in parallel through a fourth pipeline.
所述控制装置用于根据多个所述换热炉的实际温度和设定温度、所述焦炉的实际温度和设定温度来控制多个所述换热炉的所述烟气入口、所述烟气出口、所述换热气体入口和所述换热气体出口的开闭,以使进入所述焦炉的换热气体温度稳定。The control device is used to control the opening and closing of the flue gas inlet, the flue gas outlet, the heat exchange gas inlet and the heat exchange gas outlet of the multiple heat exchange furnaces according to the actual temperature and set temperature of the multiple heat exchange furnaces and the actual temperature and set temperature of the coke oven, so as to stabilize the temperature of the heat exchange gas entering the coke oven.
本发明第一方面实施例的多出口可实时切换加热系统,工作原理为,一方面,燃烧装置产生的高温烟气经第一管道可分别进入多个换热炉,进入换热炉的高温烟气对换热炉加热,使多个换热炉的实际温度满足换热炉的设定温度,进入换热炉的高温烟气对换热炉加热后变成低温烟气,低温烟气经过第二管道排走,从而实现各个换热炉的烟气循环;另一方面,低温换热气体经过第三管道可分别进入多个换热炉中,吸收换热炉的热量后变成高温换热气体,经过第四管道进入焦炉中,进行高温干馏工艺加工。通过控制装置根据多个换热炉的实际温度和设定温度、焦炉的实际温度和设定温度来控制多个换热炉的烟气入口、烟气出口、换热气体入口和换热气体出口的开闭及燃烧装置的启停,即对多个换热炉进行实时自由切换,以确保高温换热气体的温度稳定,以使焦炉获得稳定的干馏产品。The multi-outlet real-time switchable heating system of the first aspect of the present invention has the following working principle: on the one hand, the high-temperature flue gas generated by the combustion device can enter multiple heat exchange furnaces through the first pipeline respectively, and the high-temperature flue gas entering the heat exchange furnace heats the heat exchange furnace so that the actual temperature of the multiple heat exchange furnaces meets the set temperature of the heat exchange furnace. The high-temperature flue gas entering the heat exchange furnace heats the heat exchange furnace and becomes low-temperature flue gas, which is discharged through the second pipeline, thereby realizing the flue gas circulation of each heat exchange furnace; on the other hand, the low-temperature heat exchange gas can enter multiple heat exchange furnaces through the third pipeline respectively, absorb the heat of the heat exchange furnace and become high-temperature heat exchange gas, and enter the coke oven through the fourth pipeline for high-temperature dry distillation process processing. The control device controls the opening and closing of the flue gas inlet, flue gas outlet, heat exchange gas inlet and heat exchange gas outlet of the multiple heat exchange furnaces and the start and stop of the combustion device according to the actual temperature and set temperature of the multiple heat exchange furnaces and the actual temperature and set temperature of the coke oven, that is, the multiple heat exchange furnaces are freely switched in real time to ensure the temperature of the high-temperature heat exchange gas is stable, so that the coke oven obtains a stable dry distillation product.
根据本发明第一方面实施例的多出口可实时切换加热系统,具有如下的优势:一是根据需求,可自由切换换热炉,焦炉内温度可自由设定;二是能够保证进入焦炉的高温换热气体的稳定性,可以获得稳定的干馏产品;三是结构简单,易于实现。The multi-outlet real-time switchable heating system according to the first aspect of the present invention has the following advantages: first, the heat exchange furnace can be freely switched according to demand, and the temperature inside the coke oven can be freely set; second, the stability of the high-temperature heat exchange gas entering the coke oven can be ensured, and a stable distillation product can be obtained; third, the structure is simple and easy to implement.
在一些实施例中,多个所述换热炉均设有第一温度检测器,所述焦炉设有第二温度检测器。In some embodiments, the plurality of heat exchange furnaces are each provided with a first temperature detector, and the coke oven is provided with a second temperature detector.
在一些实施例中,所述烟气入口处设有第一阀门,所述烟气出口处设有第二阀门,所述换热气体入口处设有第三阀门,所述换热气体出口处设有第四阀门。In some embodiments, a first valve is provided at the smoke inlet, a second valve is provided at the smoke outlet, a third valve is provided at the heat exchange gas inlet, and a fourth valve is provided at the heat exchange gas outlet.
在一些实施例中,所述第一温度检测器、所述第二温度检测器、所述第一阀门、所述第二阀门、所述第三阀门、所述第四阀门以及所述燃烧装置均与所述控制装置相连。In some embodiments, the first temperature detector, the second temperature detector, the first valve, the second valve, the third valve, the fourth valve and the combustion device are all connected to the control device.
在一些实施例中,所述燃烧装置包括燃烧器和炉膛,所述燃烧器与所述控制装置相连,所述炉膛连接于所述燃烧器和所述第一管道之间。In some embodiments, the combustion device includes a burner and a furnace, the burner is connected to the control device, and the furnace is connected between the burner and the first pipeline.
在一些实施例中,还包括引风机,所述引风机与所述焦炉相连。In some embodiments, an induced draft fan is further included, and the induced draft fan is connected to the coke oven.
在一些实施例中,所述引风机与所述控制装置连接。In some embodiments, the induced draft fan is connected to the control device.
在一些实施例中,所述换热炉内装有蓄热材料。In some embodiments, the heat exchange furnace is filled with heat storage material.
本发明第二方面提出了一种多出口可实时切换加热方法。The second aspect of the present invention proposes a multi-outlet real-time switchable heating method.
根据本发明第二方面实施例的多出口可实时切换加热方法,应用在本发明第一方面实施例所述的多出口可实时切换加热系统上,包括如下步骤:The multi-outlet real-time switchable heating method according to the second embodiment of the present invention is applied to the multi-outlet real-time switchable heating system described in the first embodiment of the present invention, comprising the following steps:
当所述焦炉内的实际温度小于所述焦炉的设定温度且任意所述换热炉的实际温度大于自身设定温度时,则按照对应的所述换热炉的编号排列顺序,逐个操作对应的所述换热炉,关闭对应的所述换热炉的所述烟气入口和所述烟气出口并打开所述换热气体入口和所述换热气体出口,否则报警异常;When the actual temperature in the coke oven is lower than the set temperature of the coke oven and the actual temperature of any of the heat exchange furnaces is higher than its set temperature, the corresponding heat exchange furnaces are operated one by one in the order in which the corresponding heat exchange furnaces are arranged, the smoke inlet and the smoke outlet of the corresponding heat exchange furnaces are closed and the heat exchange gas inlet and the heat exchange gas outlet are opened, otherwise an abnormal alarm is issued;
当所述焦炉内的实际温度小于所述焦炉的设定温度且任意所述换热炉的实际温度小于自身设定温度,则按照对应的所述换热炉的编号排列顺序,逐个操作对应的所述换热炉,打开对应的所述换热炉的所述烟气入口和所述烟气出口并关闭所述换热气体入口和所述出口阀门,所述燃烧装置开始对对应的所述换热炉进行加热,直到对应的所述换热炉温度的实际温度大于自身设定温度时,停止加热,关闭对应的所述换热炉的所述烟气入口和所述烟气出口。When the actual temperature in the coke oven is lower than the set temperature of the coke oven and the actual temperature of any of the heat exchange furnaces is lower than its own set temperature, the corresponding heat exchange furnaces are operated one by one in the order in which the corresponding heat exchange furnaces are arranged in numbers, the flue gas inlet and the flue gas outlet of the corresponding heat exchange furnaces are opened, and the heat exchange gas inlet and the outlet valves are closed, and the combustion device starts to heat the corresponding heat exchange furnace until the actual temperature of the corresponding heat exchange furnace is higher than its own set temperature, then the heating is stopped, and the flue gas inlet and the flue gas outlet of the corresponding heat exchange furnace are closed.
根据本发明第二方面实施例的多出口可实时切换加热方法,具有如下的优势,一是根据需求,可自由切换换热炉,焦炉内温度可自由设定;二是能够保证进入焦炉的高温换热气体的稳定性,可以获得稳定的干馏产品;三是控制方法简单。The multi-outlet real-time switchable heating method according to the second aspect of the present invention has the following advantages: first, the heat exchange furnace can be freely switched according to demand, and the temperature in the coke oven can be freely set; second, the stability of the high-temperature heat exchange gas entering the coke oven can be ensured, and a stable distillation product can be obtained; third, the control method is simple.
在一些实施例中,当所述焦炉内的实际温度小于所述焦炉的设定温度且任意所述换热炉的实际温度大于自身设定温度的情况下,逐个操作对应的所述换热炉时,按照对应的所述换热炉的编号自小至大的排列顺序进行;In some embodiments, when the actual temperature in the coke oven is lower than the set temperature of the coke oven and the actual temperature of any of the heat exchange furnaces is higher than its set temperature, the corresponding heat exchange furnaces are operated one by one in the order of the numbers of the corresponding heat exchange furnaces from small to large.
当所述焦炉内的实际温度小于所述焦炉的设定温度且任意所述换热炉的实际温度小于自身设定温度的情况下,逐个操作对应的所述换热炉时,按照对应的所述换热炉的编号自小至大的排列顺序进行。When the actual temperature in the coke oven is lower than the set temperature of the coke oven and the actual temperature of any of the heat exchange furnaces is lower than its set temperature, the corresponding heat exchange furnaces are operated one by one in the order of their numbers from small to large.
本发明的附加方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本发明的实践了解到。Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解,其中:The above and/or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
图1为本发明一种实施例的多出口可实时切换加热系统的示意图;FIG1 is a schematic diagram of a multi-outlet real-time switchable heating system according to an embodiment of the present invention;
图2为本发明一种实施例的多出口可实时切换加热系统的控制系统的示意图;FIG2 is a schematic diagram of a control system of a multi-outlet real-time switchable heating system according to an embodiment of the present invention;
图3为本发明一种实施例的多出口可实时切换加热系统中的换热炉的示意图。FIG3 is a schematic diagram of a heat exchange furnace in a multi-outlet real-time switchable heating system according to an embodiment of the present invention.
附图标记:Reference numerals:
燃烧装置1;燃烧器101;炉膛102;焦炉2;换热炉3;烟气入口301;第一阀门3011;烟气出口302;第二阀门3021;换热气体入口303;第三阀门3031;换热气体出口304;第四阀门3041;蓄热材料305;第一管道4;第一主管401;第一支管402;第二管道5;第二主管501;第二支管502;第三管道6;第三主管601;第三支管602;第四管道7;第四主管701;第四支管702;第一温度检测器8;第二温度检测器9;引风机10;控制装置11。Combustion device 1; burner 101; furnace 102; coke oven 2; heat exchange furnace 3; flue gas inlet 301; first valve 3011; flue gas outlet 302; second valve 3021; heat exchange gas inlet 303; third valve 3031; heat exchange gas outlet 304; fourth valve 3041; heat storage material 305; first pipeline 4; first main pipe 401; first branch pipe 402; second pipeline 5; second main pipe 501; second branch pipe 502; third pipeline 6; third main pipe 601; third branch pipe 602; fourth pipeline 7; fourth main pipe 701; fourth branch pipe 702; first temperature detector 8; second temperature detector 9; induced draft fan 10; control device 11.
具体实施方式DETAILED DESCRIPTION
下面详细描述本发明的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,仅用于解释本发明,而不能理解为对本发明的限制。Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
下面结合图1至图3来描述本发明实施例的多出口可实时切换加热系统及方法。The following describes a multi-outlet real-time switchable heating system and method according to an embodiment of the present invention in conjunction with FIGS. 1 to 3 .
如图1至图3所示,本发明第一方面提出了一种多出口可实时切换加热系统。As shown in FIG. 1 to FIG. 3 , a first aspect of the present invention proposes a multi-outlet real-time switchable heating system.
根据本发明第一方面实施例的多出口可实时切换加热系统,包括燃烧装置1、焦炉2、换热炉3和控制装置11。The multi-outlet real-time switchable heating system according to the first embodiment of the present invention includes a combustion device 1, a coke oven 2, a heat exchange furnace 3 and a control device 11.
其中,燃烧装置1用于产生高温烟气;燃烧装置1通过燃烧燃料产生高温烟气,利用高温烟气对换热炉3进行加热升温,例如,使加热炉的实际温度大于自身设定温度。The combustion device 1 is used to generate high-temperature flue gas; the combustion device 1 generates high-temperature flue gas by burning fuel, and uses the high-temperature flue gas to heat the heat exchange furnace 3, for example, to make the actual temperature of the heating furnace greater than its own set temperature.
换热炉3有多个,多个换热炉3均包括烟气入口301、烟气出口302、换热气体入口303和换热气体出口304,多个换热炉3的烟气入口301通过第一管道4以并联方式与燃烧装置1相连,多个换热炉3的烟气出口302分别与第二管道5相连,多个换热炉3的换热气体入口303分别与第三管道6相连,多个换热炉3的换热气体出口304通过第四管道7以并联方式与焦炉2相连。There are multiple heat exchange furnaces 3, each of which includes a flue gas inlet 301, a flue gas outlet 302, a heat exchange gas inlet 303 and a heat exchange gas outlet 304. The flue gas inlets 301 of the multiple heat exchange furnaces 3 are connected to the combustion device 1 in parallel through the first pipeline 4, the flue gas outlets 302 of the multiple heat exchange furnaces 3 are respectively connected to the second pipeline 5, the heat exchange gas inlets 303 of the multiple heat exchange furnaces 3 are respectively connected to the third pipeline 6, and the heat exchange gas outlets 304 of the multiple heat exchange furnaces 3 are connected to the coke oven 2 in parallel through the fourth pipeline 7.
例如,如图1所示,换热炉3有三个,每个换热炉3包括烟气入口301、烟气出口302、换热气体入口303和换热气体出口304。在三个换热炉3与燃烧装置1之间连接有第一管道4,具体的,第一管道4包括第一主管401和与第一主管401并联相连的三个第一支管402,第一主管401的入口端与燃烧装置1相连,三个第一支管402的出口端一一对应地与三个换热炉3的烟气入口301相连,从而实现了三个换热炉3的烟气入口301通过第一管道4以并联方式与燃烧装置1相连。由此,多个换热炉3的烟气入口301通过第一管道4以并联方式与燃烧装置1相连,连接简单,且能实现燃烧装置1产生的高温烟气通过第一管道4分别进入多个换热炉3,对换热炉3进行加热,高温烟气对换热炉3加热后变成低温烟气。三个换热炉3的烟气出口302与第二管道5相连,具体的,第二管道5包括第二主管501和与第二主管501并联相连的三个第二支管502,三个第二支管502的入口端一一对应地与三个换热炉3的烟气出口302相连,连接简单,且能使三个换热炉3内的低温烟气从第二管道5排出。由此,通过第二管道5可以与多个换热炉3相连,以排出多个换热炉3内的低温烟气。三个换热炉3的换热气体入口303分别与第三管道6相连,具体的,第三管道6包括第三主管601和与第三主管601并联相连的三个第三支管602,三个第三支管602的出口端与三个换热炉3的换热气体入口303相连,连接简单,且能使低温换热气体第三主管601的入口端进入并经第三支管602分别进入三个换热炉3中,使得低温换热气体与换热炉3进行换热变成焦炉2所需的高温换热气体。由此,通过第三管道6与多个换热炉3相连,通过第三管道6将低温换热气体输送到多个换热炉3内,并分别吸收多个换热炉3的热量后而变成高温换热气体。三个换热炉3的换热气体出口304通过第四管道7以并联方式与焦炉2相连,具体的,第四管道7包括第四主管701和与第四主管701并联相连的三个第四支管702,第四主管701的出口端与焦炉2相连,三个第四支管702的入口端一一对应地与三个换热炉3的换热气体出口304相连,从而实现了三个换热炉3的换热气体出口304通过第四管道7以并联方式与焦炉2相连。由此,多个换热炉3的换热气体出口304通过第四管道7以并联方式与燃烧炉相连,连接简单,且能实现多个换热炉3内的吸热后的高温换热气体通过第四管道7进入多焦炉2中,以进行高温干馏工艺加工。通过设置多个换热炉3,可以方便切换换热炉3,以保证进入炉膛102的高温换热气体的温度稳定,也即焦炉2膛工艺温度的稳定,获得稳定的干馏产品。控制装置11用于根据多个换热炉3的实际温度和设定温度、焦炉2的实际温度和设定温度来控制多个换热炉3的烟气入口301、烟气出口302、换热气体入口303和换热气体出口304的开闭及燃烧装置1的启停,以使进入焦炉2的换热气体温度稳定。也就是说,控制装置11可以根据多个换热炉3的实际温度和换热炉3的设定温度、焦炉2的实际温度和焦炉2的设定温度来自由切换换热炉3并对应地控制燃烧装置1的启停,以确保高温换热气体的温度稳定,以使焦炉2获得稳定的干馏产品。For example, as shown in FIG1 , there are three heat exchange furnaces 3, each heat exchange furnace 3 includes a flue gas inlet 301, a flue gas outlet 302, a heat exchange gas inlet 303 and a heat exchange gas outlet 304. A first pipeline 4 is connected between the three heat exchange furnaces 3 and the combustion device 1. Specifically, the first pipeline 4 includes a first main pipe 401 and three first branch pipes 402 connected in parallel with the first main pipe 401. The inlet end of the first main pipe 401 is connected to the combustion device 1, and the outlet ends of the three first branch pipes 402 are connected to the flue gas inlets 301 of the three heat exchange furnaces 3 in a one-to-one correspondence, thereby realizing that the flue gas inlets 301 of the three heat exchange furnaces 3 are connected to the combustion device 1 in parallel through the first pipeline 4. Thus, the flue gas inlets 301 of multiple heat exchange furnaces 3 are connected to the combustion device 1 in parallel through the first pipeline 4, the connection is simple, and the high-temperature flue gas generated by the combustion device 1 can enter the multiple heat exchange furnaces 3 through the first pipeline 4 respectively, heat the heat exchange furnaces 3, and the high-temperature flue gas becomes low-temperature flue gas after heating the heat exchange furnaces 3. The smoke outlets 302 of the three heat exchange furnaces 3 are connected to the second pipeline 5. Specifically, the second pipeline 5 includes a second main pipe 501 and three second branch pipes 502 connected in parallel to the second main pipe 501. The inlet ends of the three second branch pipes 502 are connected to the smoke outlets 302 of the three heat exchange furnaces 3 in a one-to-one correspondence. The connection is simple and the low-temperature smoke in the three heat exchange furnaces 3 can be discharged from the second pipeline 5. Therefore, the second pipeline 5 can be connected to multiple heat exchange furnaces 3 to discharge the low-temperature smoke in the multiple heat exchange furnaces 3. The heat exchange gas inlets 303 of the three heat exchange furnaces 3 are respectively connected to the third pipeline 6. Specifically, the third pipeline 6 includes a third main pipe 601 and three third branch pipes 602 connected in parallel with the third main pipe 601. The outlet ends of the three third branch pipes 602 are connected to the heat exchange gas inlets 303 of the three heat exchange furnaces 3. The connection is simple, and the inlet end of the third main pipe 601 of the low-temperature heat exchange gas can enter and enter the three heat exchange furnaces 3 through the third branch pipes 602, so that the low-temperature heat exchange gas exchanges heat with the heat exchange furnace 3 to become the high-temperature heat exchange gas required by the coke oven 2. Thus, the third pipeline 6 is connected to multiple heat exchange furnaces 3, and the low-temperature heat exchange gas is transported to the multiple heat exchange furnaces 3 through the third pipeline 6, and becomes the high-temperature heat exchange gas after absorbing the heat of the multiple heat exchange furnaces 3. The heat exchange gas outlets 304 of the three heat exchange furnaces 3 are connected to the coke oven 2 in parallel through the fourth pipeline 7. Specifically, the fourth pipeline 7 includes a fourth main pipe 701 and three fourth branch pipes 702 connected in parallel with the fourth main pipe 701. The outlet end of the fourth main pipe 701 is connected to the coke oven 2, and the inlet ends of the three fourth branch pipes 702 are connected to the heat exchange gas outlets 304 of the three heat exchange furnaces 3 in a one-to-one correspondence, thereby realizing that the heat exchange gas outlets 304 of the three heat exchange furnaces 3 are connected to the coke oven 2 in parallel through the fourth pipeline 7. Thus, the heat exchange gas outlets 304 of multiple heat exchange furnaces 3 are connected to the combustion furnace in parallel through the fourth pipeline 7, the connection is simple, and the high-temperature heat exchange gas after absorbing heat in multiple heat exchange furnaces 3 can enter the multiple coke ovens 2 through the fourth pipeline 7 to perform high-temperature dry distillation process processing. By setting multiple heat exchange furnaces 3, the heat exchange furnaces 3 can be easily switched to ensure the temperature stability of the high-temperature heat exchange gas entering the furnace 102, that is, the stability of the process temperature of the coke oven 2, and obtain stable dry distillation products. The control device 11 is used to control the opening and closing of the flue gas inlet 301, the flue gas outlet 302, the heat exchange gas inlet 303 and the heat exchange gas outlet 304 of the multiple heat exchange furnaces 3 and the start and stop of the combustion device 1 according to the actual temperature and the set temperature of the multiple heat exchange furnaces 3 and the actual temperature and the set temperature of the coke oven 2, so as to stabilize the temperature of the heat exchange gas entering the coke oven 2. In other words, the control device 11 can freely switch the heat exchange furnaces 3 and control the start and stop of the combustion device 1 accordingly according to the actual temperature and the set temperature of the multiple heat exchange furnaces 3 and the actual temperature and the set temperature of the coke oven 2, so as to ensure the temperature of the high-temperature heat exchange gas is stable, so that the coke oven 2 can obtain a stable dry distillation product.
本发明第一方面实施例的多出口可实时切换加热系统,工作原理为,一方面,燃烧装置1产生的高温烟气经第一管道4可分别进入多个换热炉3,进入换热炉3的高温烟气对换热炉3加热,使多个换热炉3的实际温度满足换热炉3的设定温度,进入换热炉3的高温烟气对换热炉3加热后变成低温烟气,低温烟气经过第二管道5排走,从而实现各个换热炉3的烟气循环;另一方面,低温换热气体经过第三管道6可分别进入多个换热炉3中,吸收换热炉3的热量后变成高温换热气体,经过第四管道7进入焦炉2中,进行高温干馏工艺加工。通过控制装置11根据多个换热炉3的实际温度和设定温度、焦炉2的实际温度和设定温度来控制多个换热炉3的烟气入口301、烟气出口302、换热气体入口303和换热气体出口304的开闭及燃烧装置1的启停,即对多个换热炉3进行实时自由切换,以确保高温换热气体的温度稳定,以使焦炉2获得稳定的干馏产品。The multi-outlet real-time switchable heating system of the first aspect of the present invention has the following working principle: on the one hand, the high-temperature flue gas generated by the combustion device 1 can enter the multiple heat exchange furnaces 3 respectively through the first pipe 4, and the high-temperature flue gas entering the heat exchange furnace 3 heats the heat exchange furnace 3, so that the actual temperatures of the multiple heat exchange furnaces 3 meet the set temperature of the heat exchange furnace 3. The high-temperature flue gas entering the heat exchange furnace 3 heats the heat exchange furnace 3 and becomes low-temperature flue gas, which is discharged through the second pipe 5, thereby realizing the flue gas circulation of each heat exchange furnace 3; on the other hand, the low-temperature heat exchange gas can enter the multiple heat exchange furnaces 3 respectively through the third pipe 6, and become high-temperature heat exchange gas after absorbing the heat of the heat exchange furnace 3, and enter the coke oven 2 through the fourth pipe 7 for high-temperature carbonization processing. The control device 11 controls the opening and closing of the flue gas inlet 301, the flue gas outlet 302, the heat exchange gas inlet 303 and the heat exchange gas outlet 304 of the multiple heat exchange furnaces 3 and the start and stop of the combustion device 1 according to the actual temperature and set temperature of the multiple heat exchange furnaces 3 and the actual temperature and set temperature of the coke oven 2. That is, the multiple heat exchange furnaces 3 are freely switched in real time to ensure the temperature of the high-temperature heat exchange gas is stable, so that the coke oven 2 can obtain a stable distillation product.
根据本发明第一方面实施例的多出口可实时切换加热系统,具有如下的优势:一是根据需求,可自由切换换热炉3,焦炉2内温度可自由设定;二是能够保证进入焦炉2的高温换热气体的稳定性,可以获得稳定的干馏产品;三是结构简单,易于实现。The multi-outlet real-time switchable heating system according to the first aspect of the present invention has the following advantages: first, the heat exchange furnace 3 can be freely switched according to demand, and the temperature in the coke oven 2 can be freely set; second, the stability of the high-temperature heat exchange gas entering the coke oven 2 can be ensured, and a stable distillation product can be obtained; third, the structure is simple and easy to implement.
在一些实施例中,多个换热炉3均设有第一温度检测器8,焦炉2设有第二温度检测器9。其中,第一温度检测器8用于检测换热炉3内的实际温度,第二温度检测器9用于检测焦炉2内的实际温度。In some embodiments, the plurality of heat exchange furnaces 3 are each provided with a first temperature detector 8, and the coke oven 2 is provided with a second temperature detector 9. The first temperature detector 8 is used to detect the actual temperature in the heat exchange furnace 3, and the second temperature detector 9 is used to detect the actual temperature in the coke oven 2.
在一些实施例中,烟气入口301处设有第一阀门3011,第一阀门3011用于关闭和打开烟气入口301;烟气出口302处设有第二阀门3021,第二阀门3021用于关闭和打开烟气出口302;换热气体入口303处设有第三阀门3031,第三阀门3031用于关闭和打开换热气体入口303,换热气体出口304处设有第四阀门3041,第四阀门3041用于关闭和打开换热气体出后。In some embodiments, a first valve 3011 is provided at the smoke inlet 301, and the first valve 3011 is used to close and open the smoke inlet 301; a second valve 3021 is provided at the smoke outlet 302, and the second valve 3021 is used to close and open the smoke outlet 302; a third valve 3031 is provided at the heat exchange gas inlet 303, and the third valve 3031 is used to close and open the heat exchange gas inlet 303; a fourth valve 3041 is provided at the heat exchange gas outlet 304, and the fourth valve 3041 is used to close and open the heat exchange gas outlet.
在一些实施例中,如图2所示,第一温度检测器8、第二温度检测器9、第一阀门3011、第二阀门3021、第三阀门3031、第四阀门3041以及燃烧装置1均与控制装置11相连。这样,控制装置11可以实时获得各个换热炉3的实际温度、焦炉2的实际温度、以及第一阀门3011、第二阀门3021、第三阀门3031、第四阀门3041的开闭和燃烧装置1的启停。In some embodiments, as shown in FIG2 , the first temperature detector 8, the second temperature detector 9, the first valve 3011, the second valve 3021, the third valve 3031, the fourth valve 3041 and the combustion device 1 are all connected to the control device 11. In this way, the control device 11 can obtain the actual temperature of each heat exchange furnace 3, the actual temperature of the coke oven 2, the opening and closing of the first valve 3011, the second valve 3021, the third valve 3031, the fourth valve 3041 and the start and stop of the combustion device 1 in real time.
在一些实施例中,燃烧装置1包括燃烧器101和炉膛102,燃烧器101与控制装置相连,炉膛102连接于燃烧器101和第一管道4之间。In some embodiments, the combustion device 1 includes a burner 101 and a furnace 102 , the burner 101 is connected to the control device, and the furnace 102 is connected between the burner 101 and the first pipeline 4 .
在一些实施例中,还包括引风机10,引风机10与焦炉2相连。通过设置引风机10,可以增加换热气体通道的动力,使得高温换热气体能够快速进入焦炉2内。In some embodiments, an induced draft fan 10 is further included, and the induced draft fan 10 is connected to the coke oven 2. By providing the induced draft fan 10, the power of the heat exchange gas channel can be increased, so that the high-temperature heat exchange gas can quickly enter the coke oven 2.
在一些实施例中,引风机10与控制装置11连接。这样,可以方便地控制装置11来控制引风机10的启停。In some embodiments, the induced draft fan 10 is connected to the control device 11. In this way, the control device 11 can be conveniently used to control the start and stop of the induced draft fan 10.
在一些实施例中,如图3所示,换热炉3内装有蓄热材料305。该蓄热材料305作为蓄热介质,可以为蓄热砖等,用于与高温烟气换热,吸收高温烟气释放的热量;同时,该蓄热材料305还用于与低温换热气体换热,低温换热气体吸收蓄热材料305的热量后变成高温换热气体。In some embodiments, as shown in FIG3 , a heat storage material 305 is installed in the heat exchange furnace 3. The heat storage material 305 is used as a heat storage medium, which can be a heat storage brick, etc., for exchanging heat with high-temperature flue gas and absorbing the heat released by the high-temperature flue gas; at the same time, the heat storage material 305 is also used for exchanging heat with low-temperature heat exchange gas, and the low-temperature heat exchange gas absorbs the heat of the heat storage material 305 and becomes a high-temperature heat exchange gas.
本发明第二方面提出了一种多出口可实时切换加热方法。The second aspect of the present invention proposes a multi-outlet real-time switchable heating method.
根据本发明第二方面实施例的多出口可实时切换加热方法,应用在本发明第一方面实施例的多出口可实时切换加热系统上,包括如下步骤:The multi-outlet real-time switchable heating method according to the second embodiment of the present invention is applied to the multi-outlet real-time switchable heating system of the first embodiment of the present invention, comprising the following steps:
当焦炉2内的实际温度小于焦炉2的设定温度且任意换热炉3的实际温度大于自身设定温度时,则按照对应的换热炉3的编号排列顺序,逐个操作对应的换热炉3,关闭对应的换热炉3的烟气入口301和烟气出口302并打开换热气体入口303和换热气体出口304,否则报警异常。When the actual temperature in the coke oven 2 is lower than the set temperature of the coke oven 2 and the actual temperature of any heat exchange furnace 3 is higher than its own set temperature, the corresponding heat exchange furnaces 3 are operated one by one in the order in which the corresponding heat exchange furnaces 3 are arranged in numbers, the smoke inlet 301 and the smoke outlet 302 of the corresponding heat exchange furnace 3 are closed and the heat exchange gas inlet 303 and the heat exchange gas outlet 304 are opened, otherwise an abnormal alarm is issued.
例如,当焦炉2内的实际温度小于焦炉2的设定温度且任意一个换热炉3的实际温度大于自身设定温度时,则关闭该对应的换热炉3的烟气入口301和烟气出口302并打开换热气体入口303和换热气体出口304,否则报警异常。当焦炉2内的实际温度小于焦炉2的设定温度且任意两个以上的换热炉3的实际温度大于自身设定温度时,则对于该任意两个以上的换热炉3而言,可以先从对应的最小编号的换热炉开始,先关闭该对应的最小编号的换热炉3的烟气入口301和烟气出口302并打开换热气体入口303和换热气体出口304,再关闭对应的次小编号的换热炉3的烟气入口301和烟气出口302并打开换热气体入口303和换热气体出口304,依次类推,逐个操作该任意两个以上的换热炉3。For example, when the actual temperature in the coke oven 2 is lower than the set temperature of the coke oven 2 and the actual temperature of any heat exchange furnace 3 is higher than its own set temperature, the smoke inlet 301 and smoke outlet 302 of the corresponding heat exchange furnace 3 are closed and the heat exchange gas inlet 303 and heat exchange gas outlet 304 are opened, otherwise an alarm is abnormal. When the actual temperature in the coke oven 2 is lower than the set temperature of the coke oven 2 and the actual temperatures of any two or more heat exchange furnaces 3 are higher than their own set temperatures, for any two or more heat exchange furnaces 3, the smoke inlet 301 and smoke outlet 302 of the corresponding heat exchange furnace 3 with the smallest number can be closed first and the heat exchange gas inlet 303 and heat exchange gas outlet 304 can be opened, and then the smoke inlet 301 and smoke outlet 302 of the corresponding heat exchange furnace 3 with the second smallest number can be closed and the heat exchange gas inlet 303 and heat exchange gas outlet 304 can be opened, and so on, and the any two or more heat exchange furnaces 3 can be operated one by one.
当焦炉2内的实际温度小于焦炉2的设定温度且任意换热炉3的实际温度小于自身设定温度,则按照对应的换热炉3的编号排列顺序,逐个操作对应的换热炉3,打开对应的换热炉3的烟气入口301和烟气出口302并关闭换热气体入口303和出口阀门,燃烧装置1开始对对应的换热炉3进行加热,直到对应的换热炉3温度的实际温度大于自身设定温度时,停止加热,关闭对应的换热炉3的烟气入口301和烟气出口302。When the actual temperature in the coke oven 2 is lower than the set temperature of the coke oven 2 and the actual temperature of any heat exchange furnace 3 is lower than its own set temperature, the corresponding heat exchange furnaces 3 are operated one by one in the order of their serial numbers, the flue gas inlet 301 and the flue gas outlet 302 of the corresponding heat exchange furnace 3 are opened, and the heat exchange gas inlet 303 and outlet valves are closed, and the combustion device 1 starts to heat the corresponding heat exchange furnace 3 until the actual temperature of the corresponding heat exchange furnace 3 is higher than its own set temperature, then the heating is stopped and the flue gas inlet 301 and the flue gas outlet 302 of the corresponding heat exchange furnace 3 are closed.
例如,当焦炉2内的实际温度小于焦炉2的设定温度且任意一个换热炉3的实际温度小于自身设定温度,则打开该对应的换热炉3的烟气入口301和烟气出口302并关闭换热气体入口303和出口阀门,燃烧装置1开始对对应的换热炉3进行加热,直到对应的换热炉3温度的实际温度大于自身设定温度时,停止加热,关闭对应的换热炉3的烟气入口301和烟气出口302。当焦炉2内的实际温度小于焦炉2的设定温度且任意两个以上的换热炉3的实际温度小于自身设定温度,则对于该任意两个以上的换热炉3而言,可以先从对应的最小编号的换热炉开始,先打开对应的最小编号的换热炉3的烟气入口301和烟气出口302并关闭换热气体入口303和出口阀门,燃烧装置1开始对对应的最小编号的换热炉3进行加热,直到对应的最小编号的换热炉3温度的实际温度大于自身设定温度时,停止加热,关闭对应的最小编号的换热炉3的烟气入口301和烟气出口302;再打开对应的次小编号的换热炉3的烟气入口301和烟气出口302并关闭换热气体入口303和出口阀门,燃烧装置1开始对对应的次小编号的换热炉3进行加热,直到对应的次小编号的换热炉3温度的实际温度大于自身设定温度时,停止加热,关闭对应的次小编号的换热炉3的烟气入口301和烟气出口302;依次类推,逐个操作该任意两个以上的换热炉3。For example, when the actual temperature in the coke oven 2 is lower than the set temperature of the coke oven 2 and the actual temperature of any one of the heat exchange furnaces 3 is lower than its own set temperature, the flue gas inlet 301 and the flue gas outlet 302 of the corresponding heat exchange furnace 3 are opened, and the heat exchange gas inlet 303 and the outlet valve are closed, and the combustion device 1 starts to heat the corresponding heat exchange furnace 3 until the actual temperature of the corresponding heat exchange furnace 3 is higher than its own set temperature, then the heating is stopped, and the flue gas inlet 301 and the flue gas outlet 302 of the corresponding heat exchange furnace 3 are closed. When the actual temperature in the coke oven 2 is lower than the set temperature of the coke oven 2 and the actual temperatures of any two or more heat exchange furnaces 3 are lower than their own set temperatures, then for any two or more heat exchange furnaces 3, it is possible to start from the corresponding heat exchange furnace with the smallest number, first open the flue gas inlet 301 and the flue gas outlet 302 of the corresponding heat exchange furnace with the smallest number, and close the heat exchange gas inlet 303 and the outlet valve, and the combustion device 1 starts to heat the corresponding heat exchange furnace 3 with the smallest number, until the actual temperature of the corresponding heat exchange furnace 3 with the smallest number is higher than its own set temperature, then the heating is stopped, and the flue gas inlet 301 and the flue gas outlet 302 of the corresponding heat exchange furnace 3 are closed. Close the flue gas inlet 301 and the flue gas outlet 302 of the corresponding heat exchange furnace 3 with the smallest number; then open the flue gas inlet 301 and the flue gas outlet 302 of the corresponding heat exchange furnace 3 with the second smallest number and close the heat exchange gas inlet 303 and outlet valves, the combustion device 1 starts to heat the corresponding heat exchange furnace 3 with the second smallest number until the actual temperature of the corresponding heat exchange furnace 3 with the second smallest number is greater than its own set temperature, then stop heating, close the flue gas inlet 301 and the flue gas outlet 302 of the corresponding heat exchange furnace 3 with the second smallest number; and so on, operate any two or more heat exchange furnaces 3 one by one.
根据本发明第二方面实施例的多出口可实时切换加热方法,具有如下的优势,一是根据需求,可自由切换换热炉3,焦炉2炉膛102内温度可自由设定;二是能够保证进入焦炉2的高温换热气体的稳定性,可以获得稳定的干馏产品;三是控制方法简单。The multi-outlet real-time switchable heating method according to the second aspect of the embodiment of the present invention has the following advantages: first, the heat exchange furnace 3 can be freely switched according to demand, and the temperature in the furnace 102 of the coke oven 2 can be freely set; second, the stability of the high-temperature heat exchange gas entering the coke oven 2 can be ensured, and a stable distillation product can be obtained; third, the control method is simple.
在一些实施例中,当焦炉2内的实际温度小于焦炉2的设定温度且任意换热炉3的实际温度大于自身设定温度的情况下,逐个操作对应的换热炉3时,按照对应的换热炉3的编号自小至大的排列顺序进行;当焦炉2内的实际温度小于焦炉2的设定温度且任意换热炉3的实际温度小于自身设定温度的情况下,逐个操作对应的换热炉3时,按照对应的换热炉3的编号自小至大的排列顺序进行。该实施例的方法优势为:一是根据需求,可自由切换换热炉3,焦炉2炉膛102内温度可自由设定;二是能够保证进入焦炉2的高温换热气体的稳定性,可以获得稳定的干馏产品;三是控制方法简单。In some embodiments, when the actual temperature in the coke oven 2 is lower than the set temperature of the coke oven 2 and the actual temperature of any heat exchange furnace 3 is higher than its own set temperature, when the corresponding heat exchange furnaces 3 are operated one by one, the operation is performed in the order of the corresponding heat exchange furnaces 3 from small to large numbers; when the actual temperature in the coke oven 2 is lower than the set temperature of the coke oven 2 and the actual temperature of any heat exchange furnace 3 is lower than its own set temperature, when the corresponding heat exchange furnaces 3 are operated one by one, the operation is performed in the order of the corresponding heat exchange furnaces 3 from small to large numbers. The advantages of the method of this embodiment are: first, the heat exchange furnace 3 can be freely switched according to demand, and the temperature in the furnace 102 of the coke oven 2 can be freely set; second, the stability of the high-temperature heat exchange gas entering the coke oven 2 can be guaranteed, and a stable dry distillation product can be obtained; third, the control method is simple.
在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、或者特点包含于本发明的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施例或示例。而且,描述的具体特征、结构、或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
尽管已经示出和描述了本发明的实施例,本领域的普通技术人员可以理解:在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
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